/Engine/Plugins/MovieScene/SequencerScripting/Source/SequencerScripting/Public/ExtensionLibraries/MovieSceneSequenceExtensions.h
The given user marked frame index to edit  The frame number to set
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Sequencer|Sequence", Meta=(ScriptMethod)) static void SetMarkedFrame ( [UMovieSceneSequence](API\Runtime\MovieScene\UMovieSceneSequence) * Sequence, int32 InMarkIndex, [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) InFrameNumber )